Updating phone memory contents
Note: Once your Android data get lost, you'd better not to add or delete data in the Android smartphone.
If you do that, the Android backup file will be overwritten and what you lost can never be restored.
For a smooth update to i OS 8, it is essential to do some advance preparation, like check the compatibility of your device; Free up space on your device for i OS 8 requires at least 5.8 GB of storage; Back up your device data etc.
How to Restore Your Device After i OS 8 Update How to Recover Lost Data After i OS 8 Update How to Transfer Data After i OS 8 Update How to Speed Up i Phone/i Pad After i OS 8 Update Extend the Battery Standby Time of i Phone/i Pad/i Pod touch It is not uncommon that when you update to i OS 8, all your device data and other settings may get wiped.
Yes, of course you can restore deleted contacts from your Android phone.
Note: Firefox OS images v180 and above are based on Android KK (Kitkat, 4.4); JB (Jellybean, 4.1–4.3) builds have now been discontinued and are no longer supported, so don't use anything older than v180.